3.12 Parallel Connector
A standard 26-pin flat cable driver connector provides as CN2 with
following pin assignment for connection to parallel printer.
ꢃ CN2: Parallel Connector
PIN Description PIN
Description
1
2
STROBE
DATA 0
14
15
16
17
18
19
20
21
22
23
24
25
26
Auto Form Feed
ERROR#
Initialize
Printer Select LN#
GND
3
DATA 1
4
DATA 2
5
DATA 3
6
DATA 4
GND
7
DATA 5
GND
8
DATA 6
GND
9
DATA 7
GND
10
11
12
13
Acknowledge
Busy
GND
GND
Paper Empty
Printer Select
GND
GND
26
14
13
1
3.13 Power and LED Connectors
The following provides the pin information for CN1 4-pin power
connector, CN3 reset button connector, CN4 power LED and keylock
connector, and CN6 is IDE LED.
ꢃ CN1: 4-pin Power Connector
PIN Description
1
2
3
4
VCC
GND
GND
+12V
ꢃ CN3: Reset Button Connector
1
2
PIN
Description
1
2
Reset Signal
GND
21
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